题目内容：
根据题目要求，完成下列任务，用中文作答。 以下片段选自某课堂实录。请分析该教学片段并回答下列问题：
(1)该教师采用什么方法授课?
(2)这些方法有什么利弊?
T: Look. It's a rainbow. Oh, it's beautiful!What colour do you like?I like purple.
S1 : I like yellow. --pears
(T: What are they?Ss: Pears.
T: How many pears can you see?Ss: I can see ...
T: Do you like pears? Ss: Yes, I do. / No, I don't.)
S2: I like green. --watermelons
S3 : I like orange. --oranges
T: Look: I like pink. Can you guess?What are they?
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答案解析：